The Baby Copper Pearl 1.25 Sleep Bag was designed with your baby's comfort and safety in mind. Crafted from an ultra-soft blend of polyester and rayon, the Baby Copper Pearl Sleep Bag offers a luxurious layer of lightweight fabric that is breathable and stretches just enough for the perfect fit. Plus, the top-to-bottom zipper makes for quick and easy on and off, and the sleeveless and tag-free neckline provides maximum comfort. The Baby Copper Pearl 1.25 Sleep Bag is the perfect way to ensure your baby stays comfortable and cozy all night long.